Bryan Garaventa, 18, of Rosebank -- one of the four men convicted of going on a racism-fueled Election night crime spree that left a man in a coma -- was arrested once again yesterday for allegedly bashing on his ex-girl friend's car, then threatening to blow up the vehicle and break into her house.

Authorities allege he went on a more than two-hour rampage starting at about 10:50 p.m. Tuesday, when he confronted the woman after seeing her dropping a male friend off at the intersection of Remsen Street and Cornelia Avenue.

He went up to her car, pulled down the windows, punched the windshield, and started kicking the vehicle, denting the front fender and breaking the right door handle, court papers allege.

Garaventa then left about 10 messages on the woman's cell phone between midnight and 1 a.m. yesterday, police allege, making statements like, "If you don't answer your phone, I'm going to come to your house and blow up your car," and "If you don't answer your phone, I'm going to come and kick your front door in."

By 1 a.m., police allege, Garaventa had made his way to the woman's street, and was spotted by her mother rummaging through the side console of her car. After that, authorities say, he ran off.

The teen was out on $200,000 bail and awaiting federal sentencing for his participation in a string of hate-fueled beatings in response to Barack Obama's historic election as the nation's first black president.

His federal sentencing is tentatively scheduled for the second week in May.